MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains the URL 'https://ttraff.ru/pify?keyword=antidoto+de+heparina+pdf', suggesting a lure to a malicious site. The presence of many external PDF links also indicates a link farm, likely for SEO poisoning or traffic redirection. The ML classifier strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.ru/pify?keyword=antidoto+de+heparina+pdf
- http://kagiwam.artfromalice.com/uploads/1/3/0/7/130776208/87435e8.pdf
- http://files.jjjohnsonauthor.com/uploads/1/3/1/4/131437268/lotoxaboxubuw.pdf
- https://cdn.shopify.com/s/files/1/0437/6897/1418/files/20304414770.pdf
- https://cdn.shopify.com/s/files/1/0430/6593/3973/files/celsius_to_fahrenheit_conversion_table.pdf
- https://cdn.shopify.com/s/files/1/0434/3345/9879/files/27285818989.pdf
- https://cdn.shopify.com/s/files/1/0432/1358/6600/files/pobebutu.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fenajowogotuxukat.pdf
- https://cdn.shopify.com/s/files/1/0437/3826/7809/files/15389286485.pdf
- https://cdn.shopify.com/s/files/1/0438/5452/8677/files/.pdf
- https://cdn.shopify.com/s/files/1/0430/5911/8229/files/phonetic_alphabet_australia.pdf
- https://cdn.shopify.com/s/files/1/0432/7086/5060/files/30304062651.pdf
- https://cdn.shopify.com/s/files/1/0438/4532/0861/files/59307371151.pdf
- https://cdn.shopify.com/s/files/1/0433/4678/8502/files/88110481321.pdf
- https://cdn.shopify.com/s/files/1/0430/0275/7281/files/25710333353.pdf
- https://cdn.shopify.com/s/files/1/0432/8351/3494/files/bonagewax.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000726d.bincf7f6f1f9e7f4b1a81f7110dc36680ad5c369f7e6e3558c460447b860bbc2abd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x726D | 4908 bytes |
font_01_sfnt_off00008315.bin6b02f5df8fe1a9bd7dc797b5a67879b2dcc6446c11020d4d48246330177e43c1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8315 | 13072 bytes |
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